Overview

overview

10

Static

static

10

ab442b4a09...9c.exe

windows7_x64

10

ab442b4a09...9c.exe

windows10_x64

10

Analysis

  • max time kernel
    176s
  • max time network
    178s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    24-01-2022 01:21

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General

  • Target

    ab442b4a0926187c21fb168997e308b3cc7b7a67d746a4e0b5f06ff9b7e01f9c.exe

  • Size

    115KB

  • MD5

    1d23d9fb0d282c9c72cf717178f8a308

  • SHA1

    8ea7387921a2733ed729fbf44eb390f07bfc120b

  • SHA256

    ab442b4a0926187c21fb168997e308b3cc7b7a67d746a4e0b5f06ff9b7e01f9c

  • SHA512

    016773f761aa864228b6cc5c8fcfc134ca37204aab4df0ebdcc469b01b7a344971ce1abf62746926bdd0601c71f2b57a7250a677c360e53043022ec725ed92a1

Score
10/10
ryukransomware

Malware Config

Extracted

Path

C:\3i3s628k-readme.txt

Family

ryuk

Ransom Note
---=== Welcome. Again. ===--- [+] Whats Happen? [+] Your files are encrypted, and currently unavailable. You can check it: all files on your computer has extension 3i3s628k. By the way, everything is possible to recover (restore), but you need to follow our instructions. Otherwise, you cant return your data (NEVER). [+] What guarantees? [+] Its just a business. We absolutely do not care about you and your deals, except getting benefits. If we do not do our work and liabilities - nobody will not cooperate with us. Its not in our interests. To check the ability of returning files, You should go to our website. There you can decrypt one file for free. That is our guarantee. If you will not cooperate with our service - for us, its does not matter. But you will lose your time and data, cause just we have the private key. In practise - time is much more valuable than money. I suggest you read about us on the Internet, we are known as "Sodinokibi Ransomware". For example, this article: https://www.coveware.com/blog/2019/7/15/ransomware-amounts-rise-3x-in-q2-as-ryuk-amp-sodinokibi-spread Pay attention to that: "How Much Data Is Decrypted with a Ransomware Decryptor? In Q2 2019, victims who paid for a decryptor recovered 92% of their encrypted data. This statistic varied dramatically depending on the ransomware type. For example, Ryuk ransomware has a relatively low data recovery rate, at ~ 87%, while Sodinokibi was close to 100%. " Now you have a guarantee that your files will be returned 100 %. [+] How to get access on website? [+] You have two ways: 1) [Recommended] Using a TOR browser! a) Download and install TOR browser from this site: https://torproject.org/ b) Open our website: http://aplebzu47wgazapdqks6vrcv6zcnjppkbxbr6wketf56nf6aq2nmyoyd.onion/DA2E8996C85FB10E 2) If TOR blocked in your country, try to use VPN! But you can use our secondary website. For this: a) Open your any browser (Chrome, Firefox, Opera, IE, Edge) b) Open our secondary website: http://decryptor.cc/DA2E8996C85FB10E Warning: secondary website can be blocked, thats why first variant much better and more available. If you have problem with connect, use strictly TOR version 8.5.5 link for download TOR version 8.5.5 here: https://filehippo.com/download_tor_browser_for_windows/ When you open our website, put the following data in the input form: Key: YlsGo0jPPRjhUZy5GwlsA0zxUrIRro9q3j0FI/Yp0oOtZiNYfCdw7POt7YGtYgZ7 /yd7gm7WontlaNf8YQRn1EA/QvJDzxiaUNyU558gAmlQW7PkTKWI4Qag+nsPPcJs cQ8Q/rBa4jiAwrxB36NS2lPFObYPitle5fBO64wMmyXf7EBA53PW98wL+sdzQTJ+ 5S5BUHyXlQB2spjvCVfw2kh/rQrLXKO+4WeekIMd/bcrqQiuTWP4G8iyyX+GEFZL HehUvnGuczA6lXf38DKWJXH5oq+L8HF7SN38cifJcvu4mDIra7/v6ZKMyg7Ji+vW mD/wPHnDWqzFueu0YkvgmJow7miJQwzqoFX6cpZ9AA+Zvmxq6FF5H9We3NczVroC 9qOO99jY+HOD30fDHaJZNPVsOnwX3TVbJ5Jk0a5DwJddU0OeNgs6GTaX2hee7mmx LwuQwV88TJR95Owg99VK6BML1ioZexq/h4tx04vGOBpPfYXGRceqZ7R/s9nNQ57u FChNP5quaTA0UPkfaElebyf4NRywc8AMUWEreKMQURPaIGim9R4yvn5wN1eLfBFv m/4mBrT6qZR/J6UfYG8SHlwFD7uZrQrK4FlVRWxe5Qp8sK21ICMDMEoMFRIcW7hK PcnpDdSi0FD/4Y37pfgz++tFHv0TurPjTbgqS4od/OFGrozOYKwY5JtANVUJ4NGG S5Dv3bs9Ic51DyPLVVE8UrvhxjH28dVBaigK8sKUZbJAFQus8LWAzaAe8RMarryJ I/JwBD+TSpXjBPGpiSt1LMXW5RZI5tfes24bC61BNMBy9r4w/MAKwUsf20hFvWCX /X5f9vEVVtMBaOaWKnnb8SyntdeO9uCvk8NAZIK7xUc9R2cMcQbvhlHR5fZXsSTO auryRL0fLxWxvqfx0JH8crZCUp8+Yr0Hbw9PqVJb7F0j0BmVQs0m0AByLHeXMIhu rKPWNmxC/wnhGvrvoBB2AKYoLQd16jxj5/f1LBCCuHt8sJrkLc2Bob2y0P4taWB/ b5gsegDYdc2b8f8Yx6dbwvrFU1kOVxhOOBk2h8mjGE2eF6dbU7OwRavEzkKvJtBK TfLeViNHjXEIowb4IVwPMWIwDWD1on9SckTEnNYV/dax9eJKEXjW586qajvKYwqb XkmzNW43aQvIAHONMQrW1E/2DDpl3AFcF3FToNXgluu8IvRH7jaK0t2JTi2DisNI YOHP9GsnKm8oG5/bREKLb1Ef1QSp/DnbhOCQ/2Smy78wNJbFrfEQS1vjy+Co7Fdu rP5IpU3HSTmE0FImJjBVWEKBObE= Extension name: 3i3s628k ----------------------------------------------------------------------------------------- !!! DANGER !!! DONT try to change files by yourself, DONT use any third party software for restoring your data or antivirus solutions - its may entail damge of the private key and, as result, The Loss all data. !!! !!! !!! ONE MORE TIME: Its in your interests to get your files back. From our side, we (the best specialists) make everything for restoring, but please should not interfere. !!! !!! !!!
URLs

https://www.coveware.com/blog/2019/7/15/ransomware-amounts-rise-3x-in-q2-as-ryuk-amp-sodinokibi-spread

http://aplebzu47wgazapdqks6vrcv6zcnjppkbxbr6wketf56nf6aq2nmyoyd.onion/DA2E8996C85FB10E

http://decryptor.cc/DA2E8996C85FB10E

https://filehippo.com/download_tor_browser_for_windows/

Signatures

  • Ryuk

    Ransomware distributed via existing botnets, often Trickbot or Emotet.

    ransomwareryuk
  • Modifies extensions of user files 8 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Enumerates connected drives 3 TTPs 25 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
    ransomware
  • Drops file in Program Files directory 14 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ab442b4a0926187c21fb168997e308b3cc7b7a67d746a4e0b5f06ff9b7e01f9c.exe
    "C:\Users\Admin\AppData\Local\Temp\ab442b4a0926187c21fb168997e308b3cc7b7a67d746a4e0b5f06ff9b7e01f9c.exe"
    1⤵
    • Modifies extensions of user files
    • Enumerates connected drives
    • Sets desktop wallpaper using registry
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4164
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell -e RwBlAHQALQBXAG0AaQBPAGIAagBlAGMAdAAgAFcAaQBuADMAMgBfAFMAaABhAGQAbwB3AGMAbwBwAHkAIAB8ACAARgBvAHIARQBhAGMAaAAtAE8AYgBqAGUAYwB0ACAAewAkAF8ALgBEAGUAbABlAHQAZQAoACkAOwB9AA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3272
  • C:\Windows\system32\wbem\unsecapp.exe
    C:\Windows\system32\wbem\unsecapp.exe -Embedding
    1⤵
      PID:60
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:892

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/3272-122-0x00000290EE9F0000-0x00000290EEA12000-memory.dmp

      Filesize

      136KB

      Download

    • memory/3272-125-0x00000290EE9E0000-0x00000290EE9E2000-memory.dmp

      Filesize

      8KB

      Download

    • memory/3272-126-0x00000290EE9E3000-0x00000290EE9E5000-memory.dmp

      Filesize

      8KB

      Download

    • memory/3272-127-0x00000290EEBA0000-0x00000290EEC16000-memory.dmp

      Filesize

      472KB

      Download